COBB Adjustable Internal Wastegate Bracket

cobb wastegate bracket

COBB Adjustable Internal Wastegate Bracket


COBB Tuning is proud to announce the availability of an innovative new pair of Internal Wastegate (IWG) Brackets for Subaru and MAZDASPEED vehicles in short and long bracket styles. The COBB Tuning Adjustable IWG Bracket is the first of its kind, and the most versatile and reliable way to keep a turbocharger’s internal wastegate closed when using an external wastegate setup. The Adjustable IWG Bracket can be installed quickly, adjusted for perfect fitment on many different turbos, and can be removed just as easily to return a turbo to its original configuration.


COBB ADJUSTABLE wastegate bracket 


The COBB Adjustable IWG Bracket replaces the internal wastegate actuator and locks the wastegate in a fully closed position. This is a superior solution to welding the wastegate door closed, which is a time-consuming, expensive and irreversible process. The COBB Adjustable IWG Bracket is easy to install and bolts into place and adjusts quickly using simple hand tools.
Not all turbos are made exactly the same, and there can be variations in housings, center cartridges, clocking, etc. A single position internal wastegate bracket may not accommodate these variations and fail to close the wastegate completely, which will result in poor turbo response and lower maximum boost. The COBB Adjustable IWG Bracket takes the worry of turbo-component variance out of the equation and allows proper adjustment, every time, on a variety of different turbos that a non-adjustable internal wastegate bracket simply cannot match.


cobb wastegate bracket 


The COBB Adjustable IWG Bracket’s advantage lies in its unique adjustable rod-end linkage. The turnbuckle center section features right-hand and left-hand threads to make adjustment as easy as rotating it one direction or the other to shorten or lengthen it. The rod-end linkage and through-bolt allow high misalignment for maximum adjustability. The bracket itself is made from a single piece of 11-Gauge steel and incorporates slotted bolt-holes for additional adjustability and turbo compatibility. The custom spade-bolt that connects to the wastegate arm, the bracket, and the turnbuckle are black zinc coated for an attractive finish that is corrosion resistant. All hardware for install is included in this kit.
The COBB Tuning Adjustable IWG Bracket offers maximum turbo compatibility, simple installation and is easily adjustable to ensure complete wastegate closure to get the maximum performance from your specific setup. In the familiar words of our dads, “Make sure you shut the damned door!”



Part #: 512273 and 512274
MSRP: $39.00

Vehicle Applications:
This is a preliminary list. Additional applications will be listed as confirmed
Part # Make Model Years

  • 512274 Subaru STI 2008-2012
  • 512273 Subaru STI 2004-2007
  • 512273 Subaru WRX 2009-2012
  • 512274 Subaru WRX 2002-2008
  • 512274 Subaru 2.5GT 2010-2011
  • 512273 Subaru Forester XT 2004-2007
  • 512273 Mazda MAZDASPEED3 2007-2012
  • 512273 Mazda MAZDASPEED6 2006-2007
  • 512273 Mazda Mazda3 MPS 2007-2011
  • 512273 Mazda Mazda6 MPS 2004-2006


Turbo Applications
This is a preliminary list. Additional applications will be listed as confirmed
Part # Manufacturer Model

  • 512273 APS SR20
  • 512273 Blouch 20g, 20g-XT, 20g-XTR
  • 512273 Blouch Dominator 1.5, Dominator 3.0R
  • 512273 BorgWarner K04
  • 512273 Forced Performance Old FP Green
  • 512273 Garrett All T25 flanged internally gated turbos
  • 512273 IHI VF39, VF43
  • 512274 IHI VF39, VF43
  • 512273 18G
  • 512273 Mitsubishi TD04


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